Hi,
Is there a way to restrict USB Transfer speed on imx6 devices running Yocto Linux. I'm facing an issue with a USB isolator chip which has a full speed 12 Mbps but transfer from a USB mass storage device is very slow. I have measured the transfer speed as low as 1 Mbps with the isolator. However when the isolator is bypassed, speed is 17 Mbps.
When i googled, I could read some posts stating that the Kernel tries to transfer at Higher speeds and when it encounters errors, it switches to lower speeds. I would like to do some experimentation by setting the USB Transfer speed in the Kernel. Is there any configuration available in the Kernel to do that.
Thanks,
Nidheesh
Hi Nidneesh
one can try usb "maximum-speed" in dts :
generic.txt\usb\bindings\devicetree\Documentation - linux-imx - i.MX Linux kernel
Best regards
igor
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